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The cross

A rectangle of height 2 is crossed by two line segments at right angles. What is its width?

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Solution

The rectangle width is √2.

Based on equal angles, we can identify two similar right triangles ABE and BEC. From this similarity we get x/2=1/x and hence x2=2.

Poem

A cross in the sky so blue
Can be a sign for you
The cross symbol of Aesculape
The cross star of life
Symbol of the holy Trinity
Of two deers that cross path the story
The finish flag symbolizes the lakes and the sky in that country
Ordering one flag
For one nation
One vision

Bella

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